Child Proof Window Locks, Add the Secondary Security: A must-have window lock for partially opening windows and for keeping curious child or pets from potentially falling outside. giving you a peace time as you let in the outdoor. They offer an almost unnoticeable look. Even if your child greatly slammed the windows over them, window locks childproof will stand still without damaging the doors. Window latches are ideal for guarding your home.Reliable Window Lock: Our window guards for home security. This window blocker comes in a pack of 10 and is easy to install in seconds. The solid of these sliding window locks will not break under strong impact. You can put several window locks at once to increase the reliability of your windows.Easy to Install in Seconds: Key knob style for easy screwing. Track Locks clamp into the track of sliding windows or doors. These window stops dont require any type of structural modification at all. The lock and the window clamp are handy in the event of an emergency, instead of constantly rummaging your keys. Portable window lock fits sliding glass windows, retractable screen windows, and patio for home, office, apartment, rental house window.Check Your Window Track Size Before Ordering: The opening of the window locks security only fits up to 3/16" track rails. (your window width tracks should not exceed 0.18 in, the height must be greater than 0.44in). Ensure your track width is less than this. Ideal for sliding windows, vertical or horizontal, put this type of window lock on the tracks to stop them from opening. Made of heavy-duty aluminum, double thumbscrews ensure these window stoppers for window will clamp tightly.Adjustable Locks Keep Your Home: No one is breaking into your house through windows! leaving the windows opened with these installed on the window frame. These window locks are best used for dealing with burglars that keep on sneaking into your house, protecting your family from unwanted person. These little burglar proof window locks stop the mistake of forgetting to secure and lock your windows while you are experiencing the serene and welcoming embrace of the wind. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!